利用覆盖作物的功能特征和同步进行产量优化的玉米生产系统
Mengjing Sun1,2, Long Zhang1,2, Jiangkuo Zhou1,2
1College of Agronomy, Jilin Agricultural University, Changchun, Jilin, China.
Frontiers in plant science
|June 18, 2025
概括
在玉米 (Zea mays) 之后进行遮盖作物可以提高产量和利用效率 (NUE),改善土壤健康. 这种综合系统可以提高农业生产率,同时保护环境.
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 土壤科学 土壤科学
背景情况:
- 玉米单种植会耗尽土壤的营养物质,并损害土壤结构.
- 光合作用活性辐射 (PAR) 的不足利用是玉米生产的一个关键问题.
- 覆盖作物是一种通过利用剩余资源改善土壤质量的策略.
研究的目的:
- 调查覆盖作物对玉米树冠架构和资源分配的农业影响.
- 评估使用三叶草或大麻轮耕作对玉米生产率和使用效率 (NUE) 的影响.
- 为了阐明覆盖作物和管理在玉米系统之间的相互作用.
主要方法:
- 玉米 (Wannuo 2000) 经历了连续单一栽培 (CK),三叶草旋转 (ZT) 或菜旋转 (ZB).
- 在随机的完整块设计中,应用了五种 (N) 应用速率 (0-240 kg N ha-1).
- 覆盖特征,产量和NUE在处理和N梯度之间进行了测量.
主要成果:
- 覆盖作物 (ZT和ZB) 与CK相比,增加了20%以上的玉米产量.
- 在降低的条件下,ZT和ZB系统的利用效率 (NUE) 在降低条件下提高了20.67%.
- 路径分析表明,覆盖作物和N管理对树冠结构,生物质积累和N重新动员的协同效应.
结论:
- 综合覆盖作物管理系统提高了玉米产量和NUE.
- 这些系统提供了环境保护和提高农业生产力的双重好处.
- 该研究为可持续加强玉米生产提供了一个框架.
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